You cannot start over if you play from Facebook because your progress is always saved on your account. You can start playing from a new Facebook account, or maybe contact Facebook and ask them to delete it for you. Also why would you want to start from level 1? Have you got 3 stars on all the levels? That's be impressive ;)
Take care of the flowers first, then try to make 5-cropsies matches to maximize their value. It's a very hard level, every move counts! Also check out this video, it helps seeing how another player made it: https://www.youtube.com/watch?v=sPwE1FrWJc4
I really like Papa Pear, it's probably the most fun, but it gets really difficult and random as you progress. Farm Heroes is probably my favorite, great graphics and gameplay! By the way, for those of you who like the music on Soda, check this out: https://www.youtube.com/watch?v=CVMCG62fvag